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Star signal power is directly proportional to an effective area of a telescope.(a) True(b) FalseI have been asked this question in class test.This intriguing question comes from Stellar Sensor Design in chapter Celestial Navigation, Doppler and Altimeter Radars of Avionics

Answer»

Right answer is (a) True

For explanation I WOULD say: The signal power of a STAR, as seen by a light DETECTOR at the focal plane of the TELESCOPE, is the effective area of the telescope ENTRANCE times the irradiance of the star.



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